Connections; Conversion To A Different Type Of Gas; Commissioning; Instructions For Use - AFG 900 Serie Instrucciones Para Instakkacion, Uso Y Manteniniento

9 CONNECTIONS

The position and dimensions of connections are given in the
installation diagram at the start of this manual.
9.1 CONNECTION TO THE GAS SUPPLY
Check the compatibility of the gas supply. Check the details
given on the decals on the packing and on the appliance.Con-
vert the appliance to the local gas type, if necessary. Follow the
instructions in the next paragraph "Conversion to a different
type of gas".
On top appliances a rear connection is also available. Remove
the plug present and screw it tightly onto the front connector.
• A rapid-action gas shut-off valve must be fitted upstream of
the appliance in an easily accessible position.
• Do not use connection pipes having a diameter smaller than
that of the appliance's gas connector.
• Once the appliance has been installed, check for gas leaks at
the connection points.
9.2 ELECTRICAL CONNECTIONS
Check that the appliance is designed to operate at the voltage
and frequency of the power supply present on site. Check the
details given on the appliance data plate.
• At an easily accessible point upline of the appliance, fit an
all-pole disconnect switch of suitable capacity with a contact
breaking distance of at least 3 mm, and a highly sensitive dif-
ferential protection device. The maximum permitted leakage
current is 1 mA/kW.
• A flexible rubber cable with insulation specifications not lower
than type H05 RN-F must be used for connection.
• Connect the power supply cable to the terminal board as
shown in the wiring diagram supplied with the appliance.
• Secure the power supply cable with the cable clamp.
• Protect the power supply cable on the outside of the applian-
ce with a rigid plastic or metal pipe.
9.3 PROTECTIVE EARTH AND EARTH BONDING CON-
NECTIONS
Connect the appliance to an efficient ground circuit. Connect
the earth conductor to the terminal with the symbol
next to the main terminal board.
Connect the metal structure of the appliance to the equipoten-
tial node. Connect the conductor to the terminal with the
symbol on the outside part of the bottom.
9.4 CONNECTION TO THE WATER SUPPLY
The appliance must be connected to a potable water supply.
The water inlet pressure must be between 150 kPa and 300
kPa. Use a pressure reducer if the inlet pressure is above the
maximum permitted level.
• Install a mechanical filter and a shut-off valve upstream of the
appliance in an easily accessible point.
• Make sure the water circuit is free from ferrous particles befo-
re connecting the filter and the appliance.
• Seal any unused connectors with a plug.
• Once the appliance has been installed, check for gas leaks at
the connection points.
9.5 CONNECTION TO THE WATER DRAIN
The water drainage system must be provided using materials
resistant to temperatures of 100 °C.The bottom of the applian-
ce must not be subjected to steam produced by drainage of hot
44
water.Install a siphoned floor drain with grating below the water
drain cock of Boiling pans and in front of Bratt pans.
10 PANS WITH AUTOCLAVE LID
While the appliance is operating with the lid closed, check the
functioning of the safety valve's decompression rod by pres-
sing the black button. Also check that the steam discharge hole
is open.
Valve operating pressure: 5kPa (0.05 BAR).

11 CONVERSION TO A DIFFERENT TYPE OF GAS

Table T1 specifies, for each country:
• which gas can be used for the appliance
• the nozzles and settings for each gas that can be usedFor
nozzles, the number indicated in table T1 is also stamped on
the nozzle body.
To convert the appliance to the local gas type, follow the in-
structions given in atable T1 and carry out the steps below:
• Replace the main burner nozzle ( UM ).
• Adjust the main burner's air regulator to distance A.
• Replace the pilot burner nozzle ( UP ).
• Adjust the pilot burner air flow (if necessary).
• Replace the gas valve minimum nozzle ( Um ).
• Affix the adhesive tab indicating the new type of gas used.The
nozzles and adhesive tabs are supplied with the appliance.
11.1 REPLACING THE MAIN BURNER NOZZLE AND ADJU-
STING THE PRIMARY AIR FLOW
• Remove the front panel
• Remove nozzle UM and replace it with the one indicated in
table T1.
• Retighten nozzle UM.
• Slacken screw V and position the air regulator at distance A
as indicated in table T1.
• Retighten screw V fully.
• Re-assemble all parts. For assembly, proceed in reverse or-
der.
11.2 REPLACING THE PILOT BURNER NOZZLE
located
• Remove the front panel
• Undo connector R.
• Remove nozzle UP and replace it with the one indicated in
table T1.
• Retighten the connector R. Re-assemble all parts.
• For assembly, proceed in reverse order.

12 COMMISSIONING

See Chapter " INSTRUCTIONS FOR MAINTENANCE "

REMINDERS FOR THE USER

The manufacturer will not be liable for any damage or in-
jury resulting from failure to observe the following rules
• Read this manual carefully. It provides important information
for safe installation, use and maintenance of the appliance.
• Keep this manual in a safe place known to all users so that it
can be consulted throughout the working life of the appliance.
• Installation, conversion to a different type of gas and applian-
ce maintenance must be carried out by qualified technicians
authorized by the manufacturer, in compliance with current
safety standards and the instructions in this manual.

INSTRUCTIONS FOR USE